Electronic keyboard musical instrument



FIG. 1 is a top, front perspective view of an electronic keyboard musical instrument showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right side elevational view, the left side being a mirror image thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an electronic keyboard musical instrument, as shown and described. 